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drm/amd/display: revise Start/End SDP data

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[why & how]
We need to implement the VSC packet rev4 that is required by PSRSU.

Follow the eDP 1.5 spec pg. 257

changes in v2:
-------------------
- set vsc packet rev2 for PSR1

Cc: Chandan Vurdigerenataraj <chandan.vurdigerenataraj@amd.com>

Signed-off-by: David Zhang <dingchen.zhang@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
David Zhang 2022-04-29 17:38:14 -04:00 committed by Alex Deucher
parent 3a6dce778d
commit aa303964bc
1 changed files with 27 additions and 2 deletions
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29
drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c
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@ -145,8 +145,10 @@ void mod_build_vsc_infopacket(const struct dc_stream_state *stream,
stereo3dSupport = true;
}
/*VSC packet set to 2 when DP revision >= 1.2*/
if (stream->link->psr_settings.psr_version != DC_PSR_VERSION_UNSUPPORTED)
/* VSC packet set to 4 for PSR-SU, or 2 for PSR1 */
if (stream->link->psr_settings.psr_version == DC_PSR_VERSION_SU_1)
vsc_packet_revision = vsc_packet_rev4;
else if (stream->link->psr_settings.psr_version == DC_PSR_VERSION_1)
vsc_packet_revision = vsc_packet_rev2;
/* Update to revision 5 for extended colorimetry support */
@ -159,6 +161,29 @@ void mod_build_vsc_infopacket(const struct dc_stream_state *stream,
if (vsc_packet_revision == vsc_packet_undefined)
return;
if (vsc_packet_revision == vsc_packet_rev4) {
/* Secondary-data Packet ID = 0*/
info_packet->hb0 = 0x00;
/* 07h - Packet Type Value indicating Video
* Stream Configuration packet
*/
info_packet->hb1 = 0x07;
/* 04h = VSC SDP supporting 3D stereo + PSR/PSR2 + Y-coordinate
* (applies to eDP v1.4 or higher).
*/
info_packet->hb2 = 0x04;
/* 0Eh = VSC SDP supporting 3D stereo + PSR2
* (HB2 = 04h), with Y-coordinate of first scan
* line of the SU region
*/
info_packet->hb3 = 0x0E;
for (i = 0; i < 28; i++)
info_packet->sb[i] = 0;
info_packet->valid = true;
}
if (vsc_packet_revision == vsc_packet_rev2) {
/* Secondary-data Packet ID = 0*/
info_packet->hb0 = 0x00;